Slate-pencil sharpener



(No Model.)

O. W. 8; W. H. OGLE.

SLATE PENCIL SHARPENER.

No. 524,557. Patented Aug. 14, 1894.

wil 8,8,8 9,6- %W UNITED STATES PATENT OFFICE.

CHARLES W. OGLE AND WESLEY H. OGLE, OF OENTREVILLE, IOWA.

SLATE-PENCIL SHARPENER.

SPECIFICATION forming part of Letters Patent No. 524,557, dated August14, 1894.

Application filed December 19, 1893. Serial No. 494,129- (No model.)

.To aZZ whom it may concern:

Be it known that we, CHARLES W. OGLE and WESLEY H. OGLE, citizens of theUnited States, residing at Oentreville, in the county of Appanoose andState of Iowa, have invented certain new and useful Improvements inSlate-Pencil Sharpeners; and we do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to an improvement in slate pencil sharpeners andconsists in the construction and arrangement of parts hereinafterdescribed and definitely pointed out in the claims.

The aim and purpose of the invention is the provision of an improvedsharpener for slate pencils which can be inserted within or otherwiseaffixed to the slate frame, the school desk or pencil box of the scholarin such manner as to be readily accessible for use, and, when not inuse, to be entirely out of the way.

These objects are attained by the construction shown in the accompanyingdrawings wherein like letters of reference indicate corresponding partsin the several views, and in which- Figure 1 is a view of a slate withpencil sharpener inserted within the frame thereof, and Figs. 2 and 3are detail perspective views of the sharpener in different positions.

In the drawings A designates the sharpener, as a whole, made of a singlepiece of metal and bent into substantially conical shape with one of itsends a sharpened, and embedded in the slate frame 13 so as to as sist inholding the sharpener in position. Its other end a is located rearwardlyof said end a, and has its extremity a projecting, at an angle with itsmain part, into the body of the device, toward the center thereof,forming a cutter.

It will be observed that the end a is bent outwardly substantially at aright angle and is located relatively with the end a so as to leave aspace a between them, said space being occupied by the wood of the slateframe,

which thereby assists in holding the sharpener immovably in its place.

The apex b of the sharpener is cut away double purpose of permitting thepassage of the sharp point of the pencil, and means for discharging thedust and cuttings from the pencil.

To insert the sharpener within the frame of a slate it is necessary onlyto make an opening or aperture in the frame, corresponding in shape tothat of the sharpener, with a very slight out on one side of the saidopening, which opening, however, should be of approximately smallerdiameter, and into the aperture so made the sharpener is inserted andforced into position, where it will be securely held by frictionalcontact, and by the assistance of the wood of the frame occupying thespace a It will be readily apparent that by means of this improvement apencil can be quickly sharpened, and that an even, smooth, and perfectpoint can be given.

Having thus fully described the invention, what is claimed is- 1. Apencil sharpener made of a single piece, bent into substantially conicalshape, one end thereof projecting into the body of the device and itsextremity provided with a cutting blade, and the other end bentoutwardly and formed to engage with a holder, substantially asdescribed.

2. A pencil sharpener substantially conical in shape and having one ofits ends projecting into the body of the device and a cutting blade atthe extremity of said end, and the other end thereof bent outwardly soas to engage with the wood of a slate frame substantially as described.

In testimony whereof we affix our signatures in presence of twowitnesses.

CHARLES W. OGLE. WESLEY H. OGLE.

Witnesses:

W. T. SWEARNGIN, J. J. PRATT.

it thus forming an opening I) which serves the

